Machine for inserting metallic fastenings.



L A. GASGRAIN. MACHINE FOB. INSERTING METALLIO PASTENINGS.

' APPLICATION IEILED JUNE 9, 1902.

Patented Sept. 15, 1908.

4 SHEETS-SEER?! 2.

L; A. OASG'RAIN. MAGHINE'FOR-INSERTING METALLIC msmnmsr APPIQIOATION-IILEDJUN-E 9,1902.

Patented Sept. 15, 1908.

4 SHEETS-SHEET 3.

L. A. GASGRAIN. MACHINE FOR INSERTING METALLIC FASTBNINGS.

urmoumli. FILED JUNE 9, 1902.

0 L "Q r m W m 66 i V 4 r ,0 ww w m J a m P w I a well known machineUNITEDSTATES PATENT "OFFICE.

LOUIS A. OASGRAIN, OF WINCHESTER, MASSACHUSETTS,- ASSIGNOR TO UNITEDSHOE MACHINERY COMPANY, OF PATERSON, NEW-JERSEY, AND BOSTON,MASSACHUSETTS,

A'CORFORATION OF NEW JERSEY.

. MACHINE FOR rnsnn'rrne METALLIC FASTENINGS.

Specification of Letters Patent.

Patented. Sept. 15, 1908.

Application filed. June 9, 1902. set-m nt. 110,726.

To all whom it may concern: Be it known that I, LOUIS A. CASGRAIN, a

citizen of the United States, residing at W inchester, in the county ofMiddlesex and State i of Massachusetts, have invented an Improvement inMachines for Inserting Metallic Fas teni'ngs,q'ofwhich the followingdescription, in connection with the accompanying drawings, is 'ajispecification, like letters on the drawings representing like parts."E'Thisinvention consists of improvements in machines for insertingfastenings. v

.lylyimprovementsare shown as applied to of the type represented byUnited States Patent No. 440,805, dated November 18, 1890, which machineis arranged for forming from continuous screwthreaded wireffastenings oflengthsv varying accordingto the thickness of the stock. In

that. machine the stock is'supported on a horn, and the head of themachine which is moved laterally for feeding the stock-is lifted afterthe feeding, thatv the head may be returned to its starting position,but it should be understood that many features of myinvention areapplicable to other types of ma chines, and my claims should nottherefore be limited to the particular form of machine herein shown. IIn said machine the wire carrying spindle is rotated continuously at ahigh speet, and said spindle by a worm ention.

gaging aworm wheel on a shaft, rotates said shaft that cams thereon mayactuate the various parts of the machine 1n the proper time and order toeffect the feeding of the wire longitudinally through the spindle, the

cutting off of the wire in the stock to form a fastening, the feeding ofthe stock, and the release of the stock to permit the stock feedingmechanism to return to its starting posi- As said machine has heretoforebeen constructed, when the workman desired to stop the insertion offastenings he operated a operation of the Wire feeding mechanism, butthe cam shaft with-its cams and the mechanism actuated thereby continuedin operation and it was also necessary for the workman to raise the headbya separate treadle in order to remove or apply the work.

' In the machine embodying the present invention, I have arrangedmechanism for stopping the rotation of the cam shaft, and hence stoppingthe operation of the various mechin one of the best forms now anismsoperated by the cam shaft, without stopping the rotation of thewire-carrying spindle. This mechanism also operates to leave the head inelevated position when the insertion of fastenings is stopped, so thatthe always at a predetermined point, so that the head of the machine isleft in elevated position to facilitate the removal and applica tion ofthe work from and to the horn so that the cam for operating the wirefeeding mechanism is stopped atsuch a position that the proper length ofvsdre is secured for the first fastening to be made when the machine isagain started, and so, also, that the knives whichcut the fasteningsfromthe wire are rendered inbperative, thereby preventing their being dulledby striking each. other.

Figure 1 in side elevation shows part of a machine with my invention aplied thereto rnown to inc; Fig. 2 shows a tion of the mac ine shown inFig. 1; Fig. 3 is a detail much enlarged of part of the machine shown inFig. 1; Fig. 4 is an enlarged view of part of the front-end of themachine; Fig. 5 is a sectional detail showing the roller carrier orsleeve of the clutch in position between the shaft and the worm gear,the latter and the carrier being in longitudinal section; Fig. 6 is asection in the line r, Fig. 3, looking to the right; Fig. 7 shows one ofthe springs 14 detached; Fig. 8 is a section in the dotted line 00 ofFig. 3; Fig. 9 in perspective shows the sleeve and the shoe to engage itand release the clutch from the shaft. Fig. 10 is a partial right handside elevation of the machine shown in Fig. 1 Fig. 11 is a detail viewshowing part of the wire-cutting mechanism- 7 Fig. 12 1s an enlargedsectional dated in the line 11-31, Fig. 9; and Fig. 13 is a sectional.

detail of part of the spindle 1) showing the wire-feeding mechanism.

Referring to the drawings, .0 represents part of a hollow column adaptedto stand on the floor, E a head having a stem E that enters and is freeto slide and turn in the col artial rear end view and sec bearings inthe head E and rotated constantly at high speed by a'belt D".extendedover a pulley F fast on said spindle. The wire to befed through thespindle is carried by a reel F mounted on the upper end of the spindle,and is fed intermittingly by two feed rolls l" each mounted on shafts1c, the opposite ends of which, see Fig. 10', have pinions k that,int'ermesh.

These shafts are rotated intermittingly by or through an intermediatepinion 7c engaged by a larger pinion 70 mounted on one end of a shaft kwhi'ch is provided at its other end with a ratchet-toothed wheel is.

Rotatably mounted on the shaft k ds the sleeve'k" of 'a pawl carrierhaving the pawls 70 adapted to engage and rotate the ratchettoothedwheel k, as shown in Fig.1. For actuating the pawl carrier to movethefeed rolls intermitti'ngly I'have shown a lever K pivoted at K. Thislever at one end embraces a block m mounted loosely on' a stud 'mextended from a slide bar m the ends of which'are arran ed to slide inguides m The'slide bar m has a stud m that enters a ring c that embracesa nut c loosely surrounding the spindle D'and having depending from it arack bar J the teeth of which engage the pinion m mounted on the sleevek ofthe pawl carrier, as shown in Fig. 13. The lever K has a roller orother stud m thatis acted upon by the cam or actuator L mounted ontheshaft I'which rotates'in bearings in the head E. The length of thefastenin to be inserted is controlled through the usua measuring leg nconnected with the rear end of the lever K. The'cam L has a projection Csee Fig. 2 for imparting movement to the wire cutting mechanism shown asa lever C pivoted on the head at C The lower end of the lever isinturned, as shown by dotted lines Fig. 2, and is toothed see Fig. 10,to engage a pinion n fast on a stud having at its lower end a pinion athat engages" teeth of two arms n, M, having each a cutter n forsevering the wire close tothe surface of the stock.

The shaft I has a second cam or actuator B provided with a groove d 'formoving a lever V employed to lift the head carrying the foot plate ornose C to unclamp the stock, that the head may be returned to itsstarting position after having been moved laterally to feed the stock.Said shaft has athirdcam or actuator O for movingthe head laterally toeffect the feeding of the stock. r I

N represents a vertical rod sustained inthe head E, a hollow rock shaftN embracing said rod and having at its upper end an arm.

N carrying a roller stud to enterthegroove in the cam O. A forked arm N'at the lower end of said hollow rock shaft embraces loosely a stud orfulcrum N adjustable horizontally in an 'extension C of the column. C. aThe movement of the hollow rook-shaft bythe cam O insures the swingingof the head E for A-stand C fixed to the column 0 sustains a ratchettoothed plate C and has ways to regage one of the teeth of said ratchetplate, and the cam B thereafter. acting on the lever.

V, will lift the head from the stockwhatever its thickness, therebyunclam ing the stock,

that the headma'y be returne to its starting position pre aratorytoinserting another fastening an Patent No. 440,805, November 18,1890. v

On the shaft 1; carryingthelever V is an" arm b to which is jointed acontrolling bar V having a cast-off b. A s ring e acts nor- .ceive andguide a slide D connected with the lever V by a'rod d. The slide Dcarr'iesa pawl D? which, after the 'stockhas' been fed, may en feedingthe stockfall as more fully shown and described in United States mallyto lift the arm b so t at a roller stud thereon may be acted upon by theperiphery of the cam B. As the head arrives in its starting positionafter feeding the stock, the v shape in thegroove of the cam B is suchas to let the head descend that the nose orfoot piece may rest upon thetop of the stock, and" just at this time a projecting part ofthe cam Bacts to depress the arm 6 and causethe cast-off b to meet and disengagethe pawl D from the tooth of the ratchet plate C- then engaged by it,whereby the pawl is held out of engagement with the teeth of the plate Cuntil it is desired to again raise the head tofeed the stock. The edgegage His sustained c by the column C.

The parts so far specifically described and referred to by letterwiththe exception of the wire-cutting mechanism are common I to UnitedStates Patent No. 440,805, dated Nov. 18, 1890,.wherein the said partsare-Q 'more fully and particularly described,

I will now proceed to describe my present improvements as embodied inthe machine-"- herein shown.

*1 have extended the main shaft l r01 wardly, as represented in Figs. 1,3 and 4 worm G carried by the spindle D/ The gear I a has secured withinit a steel ring 8 in which is inserted loosely a sleeve 12 the outer.end of which has areoessa to overlap the ta ered end of thebearing Zsecured to the hea and in which the shaft I turns. The hub is preventedfrom moving end-wise on the shaft i.

seam

'by an adjustable end-thrust block 2 as which rollers 13. are seated'andthe shaft I has four flattened portions on which the rollers rest whenthe shaft and gear a. are

unclutched, as hereinafter described. The

ingl

sleeve 12 surrounds the shaft I, and the hub a of the gear av surroundsthe-sleeve 12, so thatthe rollers 1.3 are inter osed between the outersurface of the shaft and the inner surface of ring 8 in the hub a. Thesleeve on its innerside is provided with recesses 14 see Fig. 12 whichreceive the ends of springs 14, the other ends of the springs engagingseats out in the shaft I, as shown in Fig. 8, whereby the sleeve 12 andshaft I are yield held together. The springs are normal y under tension,and when they are free to act they turn the sleeve about the shaft for asufficient distance to carry the rollers off the flattened portions 10of the shaft so that they will clutch the outer surface of the shaft andthe inner surface of the ring 8 in hub a, thereby connecting the gear aand shaft I. This mechanism constitutes one form of the well knownHorton clutch, but it will be obvious that any other usual clutchmechanism could be employed without departing from my invention. Thepcriphery of the outer end of the sleeve 12 is cut as shown by dottedlines Figs. 6 and 9, to constitute a cam part 16 and form a shoulder 17.The column C is provided with a stand 18 having a stop 19 and a stud 20to support a dog 21 controlled as to the extent of its movement by saidstop. One end of the dog is acted upon by a rod 22 operated by a treadleor lever, not shown, located preferably at or near the floor andcontrolled by the workman, whereby the rod 22 may be lifted to turn thedog 21 in the direction of the arrow thereon, Fig. 4. A spring 23connected at one end with the dog and at its other end with a stud Cprojecting from the stand 18 moves the dog in a direction opposite thearrow whenever the workman removes his foot from the treadle.

The head of the machine has a suitable stand 2 1 that receives a pivotpin 25 for a clutch controller shown as composed of a sleeve 26 havingthree arms 27, 28 and 29.

The arm 29 is hollow and receives the stem 30 of a shoe 31, shown asnotched, see Fig. 9, to engage with the cam surface 16 and the shoulder17 of the end of the sleeve 12. The arm 29 contains a spring which actsnore lnally to press the stem 30 outwardly, a stop screw 32 entering agroove in said stem preventing the same from rotating in the sleeve andfrom being withdrawn fully therefrom.

The arm 28 is acted upon at its end by a suitable spring 33 see Fig. 6,that causes the arm 27 to be kept. normally against the dog 21. l

The stand 24 has, as shown in Fig. 6, a split ear 33 in which is clampeda toe piece 34 the position of which is determined by a screw 35. Thetoe piece constitutes a safety device to positively turn the arm 29 ofthe controller outwardly in case the rollers 13 0f the clutchv deviceshould fail to release the shaft after the workman removes his foot fromthe treadle to stop the machine. In. 1

such case the stem 30 wouldbe forced downwardly against the tension ofthe spring in hub 29 until the shoe 31 engaged the toe piece 34 when thelever would be turned to move shoe 31 out of the path of movement ofshoulder 17, thus preventing any. breakage of the parts.

Whenever the operator desires to begin to insert fasten'ings he elevatesthe rod 22 toturn the dog 21 and cause the clutch controller to be movedin a direction to withdraw the shoe -31 from contact with the shoulder17 of sleeve 12, and instantly the springs 14 turn the sleeve 12,thereby moving the rollers 13 off the flattened portions 10 of the shaftI so that they will be wedged between the outer surface of said shaftand the inner surface of the ring 8 1n the hub of the gear a, andconnect'the gear a to the shaft I. Whenever the operator releases therod 22, the spring 23 acts to turn the dog 21 away from the arm 27 ofthe controller so that the spring 33 turns the controller to put the s0e 31- against some part of the periphery of the outer end of the sleeve12, and before the completion of a rotation of the sleeve the shoe meetsthe cam surface- 16, and finally engages the shoulder 1.7, instantlyarresting the further rotation of the sleeve with the shaft, andremoving the rollers from clutching or driving contact with the interiorof the gear a, so that the shaft I and gear a are unclutched in orderthat said gear may 0011- tinue to rotate while the cam shaft I and itscams stop at a definite position, leaving the stock unclamped and theparts moved by said cams at rest in their normal or starting position.

The cam for raising the head is so arranged that when the machinestops-the headis left in elevated position to allow the work to beremoved from or applied to the horn without the necessitv of a separateoperation for raising the head, and the cam which operates the wirefeeding mechanism stops in such position that when the machine is againstarted the lever K can be given its full movement to feed enough wirefor a fastening of the greatest length if so desired, the length of thefastening to be inserted being determined by the thickness of the stock.p

The worm gear a is the form of consupport and foot 4.; i are:

stantly moving member, referred to in the claims, which I have employedin the em bodiment of my invention herein shown and described. The camsonthe cam shaft I are the'actuators referred to in my claimswhich,

as has been explained, are arranged to be connected withordisconnectedfrom the constantly moving member at the'will of the OP?" eratori v I Bythe term constantly-moving member? employed in the claims, I intend toinclude andjcover any constantly moving memher, however operated, whichmember when startedbythe operator, continues to move plane the operatorstopsand starts at will other operative parts of the machine, and-Iintend to i cover broadly any constantly moving membero'f a machine, andany suitable means coacting'with it, or any means intermediate saidmember and an actuator or actuators'whereby the actuator or actuatorsmay be stopped independently of the constantly moving member.

Ihave hereinshown the head having the foot plate as movable from andtoward the upper end of the stock-support, but as many features of myvinvention-may be used to equal advantage in machines in which the hornis depressed to unclamp the stock, I

shall use in the claims the expressionto change the relative positionsof the stock movement of either the'footplate or the stock-support tounclamp the stock, or toseparate them for the removal or application ofstock to the stock support.-

"l-Iaving described my invention, what I is: the combination withfastening-inserting mechanism, comprising wireieeding means and adriving member, of a constantly movmg member driven by said drlvingmember,

an actuator for said wire-feeding means in operative relationship tosaid moving memher and means intermediate said moving member andactuator to stop said actuator and wire feeding means wheninpredetermined position while the moving member continues in operation.

I 2. Ina machine for inserting fastenings,

' the combination with. fastening-inserting mechanism comprisingwirefeeding means and a driving member, of a constantly moving memberdriven by said driving member, Wire cutting means, actuators for saidwire feeding means and wire cutting-means in op erative relationship tothe moving member, and means intermediate said moving mem her and saidactuators --to stop; said ac-v tuators and the wire feeding and Wirecutting.

means when in predetermined position while the moving membercontinues-1n operation.

77 i i plate as covering the claim and desire to secure by LettersPatent 1 In a'machine' for inserting fastenings,

3. In a machine for inserting fastenings,

2 stock support, a head carrying a driving member, and having a footplate to bear on Y the stock, a. constantly moving member driven by saiddriving member, an actuator in o erative relationship to said moving memer, means moved by the actuator for moving the head to feed the stockand means intermediate said member and said actuator to stop theactuator when 1n predetermined position and restrain the movement of thehead for feeding while the moving member continues in operation. r

4. In a machine for inserting fastemngs, a stock support, a headcarrying a driving member and having a foot plate to bear on the stock,a constantly moving member driven by said driving member, an actuator inoperative relationship to saidmoving member, means operated by said,actuator to change the relative positions of the foot plate and stocksupport to unclamp the stock between the operations of insertingfastenings, means intermediate said moving member and actuatorto stopsaid actuator and the means operated by it when in a predeterminedposition for the removal of the unclamped stock while the moving membercontlnues 1h operation.

.5] In a machine for inserting fastenings,

a stock support, a head carrying a driving member and having afoot platetobear on i the stock, a constantly moving member driven by said drivingmember, an actuator, means operated by said actuator to change therelative positions of the foot plate and stock support to unclamp. thestock between the operations of inserting fastenings, a clutch co-actingwith said moving member and actuator, and means to cause said clutch torelease the actuator from the control of said moving member whilethestock is unclamped for its removal from the stock sup port in orderthat said actuator and'the means operated thereby may remain at restwhile said member continues in operation.

6. In a machine for inserting fastenings, a

continuously moving Wire carrying spindle,

wire feeding means carried thereby, an actuator for moving said wirefeeding means ,and manually controlled means intermediate saidspindle-and actuator to stop the actuator and 13 e wire feeding meanswhen in predeter' 1 said actuator to lift the head from the stockWhatever its thickness to unclamp the stock, a moving member, meansbetween sa1d mov mgmember and actuator to stop the actuator Whenthe headis lifted and at rest for the removal of the stock from the stocksupport While the moving member continues in operation.

9. In a machine for inserting fastenings, a stock support, a head havinga foot plate to bear on the stock and clamp it against the stocksupport, an. actuator, means operated by said actuator to lift the headfrom the stock whatever its thickness to unclamp the stock, a movingmember, means between said moving member and actuator to stop theactuator and the means operated by it,

when the head and foot plate are lifted with the stock unclamped forremoval from the stock support while the moving member 0011- tinuesinoperation, and means to thereafter cause said moving member to pick upand start said actuator and the means operated thereby to clamp thestock preparatory to inserting a fastening therein.

10. In a machine for inserting metallic fastenings, a work-support, avertically movablehead, a rotating spindle carried by said head,mechanism actuated by said spindle to raise the head periodically toallow the work to be fed, and means to render said mechanism inoperativewhile the spindle continues to rotate.

11 In a machine for inserting metallic fastenings, a work-support, avertically IHOV':

able head, a. rotating spindle, and mech anism actuated by said spindleto raise the head and maintain it in raised position without stoppin thespindle.

12. In a machine for inserting metallic fastenings, a work-support, ahead, a rotating spindle, mechanism: actuated by said spindle forraising the head and maintaining it in raised position without stoppingthe spindle, and for lowering the head when fastenings are again to beinserted.

13. In a machine for inserting fastenings, a constantly-rotatingwire-carrying spindle,

connected wire-feeding means, an actuator for moving said wire-feedingmeans, and

means intermediate said spindle and actua-' tor to stop said actuatorand the wire-feeding means when in predetermined position while thespindle continues to rotate.

"14. in a machine for inserting fastenings, wire-feeding means, a rotaryactuator for moving the same to feed wire, a constantly rotating memberrotatable about the same axis as the actuator; and means intermediatesaidconstantly-rotatingmember and the actuator to stop the latter andwire-feeding means when in predetermined position while saidconstantly-rotating member continues.

in its rotation. 4

. 15. In a machine for inserting fastenings, a stock support,stock-feeding means, an actuator therefor, a constantly-moving mem ber,a driving member constituting part of the operating mechanism of themachine, said moving member being connected to said driving member foractuation thereby, operative connections intermediate said actuator andmoving member, and means controlling the operation of said connectionsfor stopping the actuator and. the stock-feeding means when in apredetermined position while the moving member continues in operation.

16. In a machine for inserting fastenings,

the combination with fasteningdnserting' mechanism comprising fastening-feeding means and a driving member, operating mechanism for saidfeeding means comprisiiig a constantly moving member driven by saiddriving member, an actuator, and operative connections between saidactuator and moving member, of means controlling the operation of, saidconnections for stopping the actuator and feeding means when inpredetermined position while the moving member continues in o eration.

17. Amachine orinsertingfastenings comprising in part, a source ofpower, a constantly-moving member driven from said source of power, saidmember constituting a portion of the train of operating mechanism of themachine, fastening feeding means, an actuator therefor, and meansintermediate said moving member and actuator to stop said actuator andfeeding means-when in predetermined position while the moving membercontinues in operation.

18; In a machine for inserting fastenings, the combination with a maindriving member driven from a source of power, an intermediate drivingmember driven from said main driving member, said intermediate drivingmember constituting a part of the operating mechanism of the machine, off astoning-feeding means actuated irom said 1ntermediate driving memberand means for interrupting the actuation of said feeding means when inpredetermined position without interrupting the actuation of theintermediate driving member. I

19. In a machine for inserting fastenings, the combination with a maindriving member driven from a source of power, an intermediate-drivingmember driven from said main driving member, said intermediate drivingmember constituting a part of the operating mechanism of the machine, offastening-feeding and Work-feeding means actu- In testimony whereof, Ihave signed my ated from said intermediate driving member name to thisspecification, in the presence of and means for interrupting theactuation of two subscribing Witnesses; said two last-named means whenin predel LOUIS A. CASGRAINi 5 termined position without interruptingthe VVit-nesses:

actuation of the intermediate driving mem- GEO. W. GREGORY, ber. EDITHMa STODDARD.

